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Company News About Why do bricks have compression and tensile cracks during the drying process? What are the solutions?

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2025-04-04

The molding moisture is too high. The molding moisture of the green body should be reduced to improve the strength of the wet green body to avoid fracturing due to the wet green body being too soft.
The plasticity index of the raw material is too low, and the green body strength is low, causing fracturing. Raw materials with high plasticity can be mixed or the number of layers of the green body can be reduced.
Compression and tensile cracks caused by high plasticity index of the raw material, excessive drying shrinkage or uneven shrinkage. Appropriately add lean materials and strengthen the homogenization of raw materials.
The green body temperature is too low and the exhaust humidity at the inlet end is too high, causing condensation, which causes the green body to absorb moisture and soften, causing fracturing. The green body temperature should be appropriately increased and the dehumidification air volume should be increased.
The drying vehicle surface is uneven. The vehicle surface should be kept flat.
Vibration caused by collision of the drying vehicle leads to cracks. Operation management should be strengthened.

Henan Ruiyao Intelligent Environmental Protection Co., Ltd

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Suixian Industrial Zone, Suixian, Shangqiu, Henan Province, P. R. China

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